Registration Dossier
Registration Dossier
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EC number: 700-413-2 | CAS number: 6331-96-0
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: inherent biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Basic data given.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 986
- Report date:
- 1986
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 302 B (Inherent biodegradability: Zahn-Wellens/EMPA Test)
- GLP compliance:
- no
Test material
- Reference substance name:
- 3,4-Dichloroaniline-6-sulfonic acid
- EC Number:
- 700-413-2
- Cas Number:
- 6331-96-0
- Molecular formula:
- C6 H5 Cl2 N O3 S
- IUPAC Name:
- 3,4-Dichloroaniline-6-sulfonic acid
- Details on test material:
- - Name of test material (as cited in study report): Dichlororthanilsaeure
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, industrial (adaptation not specified)
- Details on inoculum:
- - Source of inoculum/activated sludge (e.g. location, sampling depth, contamination history, procedure): activated sludge taken from the waste water treatment plant of BASF- Concentration of sludge: 5 g/l
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 400 mg/L
- Based on:
- DOC
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- DOC removal
Reference substance
- Reference substance:
- other: no
Results and discussion
% Degradation
- Parameter:
- % degradation (DOC removal)
- Value:
- < 20
- Sampling time:
- 28 d
- Details on results:
- Kinetic of test substance (in %): = 5 after 3 hour(s)< 0 after 7 day(s)= 3 after 21 day(s)= 0 after 28 day(s)
Applicant's summary and conclusion
- Interpretation of results:
- other: DOC-elimination, poorly eliminable from water
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